diff --git a/dsc-arduino-interface.kicad_sch b/dsc-arduino-interface.kicad_sch
index 3cd30c1..d433cd9 100644
--- a/dsc-arduino-interface.kicad_sch
+++ b/dsc-arduino-interface.kicad_sch
@@ -606,13 +606,13 @@
   (symbol (lib_id "Device:R") (at 33.02 59.69 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 06119d4b-81c4-4357-990e-fc53c23277eb)
-    (property "Reference" "R?" (id 0) (at 35.56 58.4199 0)
+    (property "Reference" "R2" (id 0) (at 35.56 58.4199 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
     (property "Value" "10k" (id 1) (at 35.56 60.9599 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
-    (property "Footprint" "" (id 2) (at 31.242 59.69 90)
+    (property "Footprint" "Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder" (id 2) (at 31.242 59.69 90)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Datasheet" "~" (id 3) (at 33.02 59.69 0)
@@ -625,13 +625,13 @@
   (symbol (lib_id "Device:R") (at 62.23 49.53 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 21bf6af4-154a-4add-9dc5-268e5a97c9ef)
-    (property "Reference" "R?" (id 0) (at 64.77 48.2599 0)
+    (property "Reference" "R4" (id 0) (at 64.77 48.2599 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
     (property "Value" "33k" (id 1) (at 64.77 50.7999 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
-    (property "Footprint" "" (id 2) (at 60.452 49.53 90)
+    (property "Footprint" "Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder" (id 2) (at 60.452 49.53 90)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Datasheet" "~" (id 3) (at 62.23 49.53 0)
@@ -644,7 +644,7 @@
   (symbol (lib_id "power:GND") (at 33.02 63.5 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 244091d5-bfc4-4f5e-a800-86953acefc57)
-    (property "Reference" "#PWR?" (id 0) (at 33.02 69.85 0)
+    (property "Reference" "#PWR01" (id 0) (at 33.02 69.85 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Value" "GND" (id 1) (at 33.02 68.58 0))
@@ -660,7 +660,7 @@
   (symbol (lib_id "power:+5V") (at 59.69 26.67 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 2dacde19-80db-4d38-9824-020311701aea)
-    (property "Reference" "#PWR?" (id 0) (at 59.69 30.48 0)
+    (property "Reference" "#PWR03" (id 0) (at 59.69 30.48 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Value" "+5V" (id 1) (at 59.69 21.59 0))
@@ -676,7 +676,7 @@
   (symbol (lib_id "MCU_Module:WeMos_D1_mini") (at 96.52 43.18 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 46579641-62bd-490c-85c1-282dfb1e88b7)
-    (property "Reference" "U?" (id 0) (at 98.5394 63.5 0)
+    (property "Reference" "U1" (id 0) (at 98.5394 63.5 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
     (property "Value" "WeMos_D1_mini" (id 1) (at 98.5394 66.04 0)
@@ -709,9 +709,9 @@
   (symbol (lib_id "Connector:Screw_Terminal_01x04") (at 31.75 31.75 180) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 53e48d44-ba1e-42f1-9a32-a5a15c5c3055)
-    (property "Reference" "J?" (id 0) (at 31.75 20.32 0))
+    (property "Reference" "J1" (id 0) (at 31.75 20.32 0))
     (property "Value" "Screw_Terminal_01x04" (id 1) (at 31.75 22.86 0))
-    (property "Footprint" "" (id 2) (at 31.75 31.75 0)
+    (property "Footprint" "TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-4-5.08_1x04_P5.08mm_Horizontal" (id 2) (at 31.75 31.75 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Datasheet" "~" (id 3) (at 31.75 31.75 0)
@@ -726,7 +726,7 @@
   (symbol (lib_id "power:GND") (at 59.69 29.21 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 5b04c2f1-f19d-4913-83ad-e159cec6f0f0)
-    (property "Reference" "#PWR?" (id 0) (at 59.69 35.56 0)
+    (property "Reference" "#PWR04" (id 0) (at 59.69 35.56 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Value" "GND" (id 1) (at 59.69 34.29 0))
@@ -742,7 +742,7 @@
   (symbol (lib_id "power:GND") (at 52.07 92.71 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 77fe47b2-b6d7-43bb-b6db-557debaa65e0)
-    (property "Reference" "#PWR?" (id 0) (at 52.07 99.06 0)
+    (property "Reference" "#PWR02" (id 0) (at 52.07 99.06 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Value" "GND" (id 1) (at 52.07 97.79 0))
@@ -758,7 +758,7 @@
   (symbol (lib_id "power:GND") (at 62.23 63.5 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 7f20785b-a433-4b0d-8b63-37f4ac8802dd)
-    (property "Reference" "#PWR?" (id 0) (at 62.23 69.85 0)
+    (property "Reference" "#PWR05" (id 0) (at 62.23 69.85 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Value" "GND" (id 1) (at 62.23 68.58 0))
@@ -774,9 +774,9 @@
   (symbol (lib_id "Device:R") (at 36.83 87.63 90) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid 97e7a03f-b013-4c93-904e-db2735cd0292)
-    (property "Reference" "R?" (id 0) (at 36.83 81.28 90))
+    (property "Reference" "R3" (id 0) (at 36.83 81.28 90))
     (property "Value" "1k" (id 1) (at 36.83 83.82 90))
-    (property "Footprint" "" (id 2) (at 36.83 89.408 90)
+    (property "Footprint" "Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder" (id 2) (at 36.83 89.408 90)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Datasheet" "~" (id 3) (at 36.83 87.63 0)
@@ -789,7 +789,7 @@
   (symbol (lib_id "power:+5V") (at 93.98 22.86 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid a192deea-18e5-409c-b3a9-8495c50494c1)
-    (property "Reference" "#PWR?" (id 0) (at 93.98 26.67 0)
+    (property "Reference" "#PWR06" (id 0) (at 93.98 26.67 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Value" "+5V" (id 1) (at 93.98 17.78 0))
@@ -805,7 +805,7 @@
   (symbol (lib_id "Transistor_BJT:2N3904") (at 49.53 87.63 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid a57b419a-80ba-431f-b8ba-44d5e367cdc2)
-    (property "Reference" "Q?" (id 0) (at 54.61 86.3599 0)
+    (property "Reference" "Q1" (id 0) (at 54.61 86.3599 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
     (property "Value" "2N3904" (id 1) (at 54.61 88.8999 0)
@@ -825,7 +825,7 @@
   (symbol (lib_id "power:GND") (at 96.52 63.5 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid aa26f61a-83bb-466a-81bd-6cb1d473e1ff)
-    (property "Reference" "#PWR?" (id 0) (at 96.52 69.85 0)
+    (property "Reference" "#PWR07" (id 0) (at 96.52 69.85 0)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Value" "GND" (id 1) (at 96.52 68.58 0))
@@ -841,13 +841,13 @@
   (symbol (lib_id "Device:R") (at 33.02 49.53 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid c3474043-1248-4be5-806a-76aa8f6b8645)
-    (property "Reference" "R?" (id 0) (at 35.56 48.2599 0)
+    (property "Reference" "R1" (id 0) (at 35.56 48.2599 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
     (property "Value" "33k" (id 1) (at 35.56 50.7999 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
-    (property "Footprint" "" (id 2) (at 31.242 49.53 90)
+    (property "Footprint" "Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder" (id 2) (at 31.242 49.53 90)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Datasheet" "~" (id 3) (at 33.02 49.53 0)
@@ -860,13 +860,13 @@
   (symbol (lib_id "Device:R") (at 62.23 59.69 0) (unit 1)
     (in_bom yes) (on_board yes) (fields_autoplaced)
     (uuid c4bc9bfd-fd92-4944-a701-a0978a2ca965)
-    (property "Reference" "R?" (id 0) (at 64.77 58.4199 0)
+    (property "Reference" "R5" (id 0) (at 64.77 58.4199 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
     (property "Value" "10k" (id 1) (at 64.77 60.9599 0)
       (effects (font (size 1.27 1.27)) (justify left))
     )
-    (property "Footprint" "" (id 2) (at 60.452 59.69 90)
+    (property "Footprint" "Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder" (id 2) (at 60.452 59.69 90)
       (effects (font (size 1.27 1.27)) hide)
     )
     (property "Datasheet" "~" (id 3) (at 62.23 59.69 0)
@@ -882,49 +882,49 @@
 
   (symbol_instances
     (path "/244091d5-bfc4-4f5e-a800-86953acefc57"
-      (reference "#PWR?") (unit 1) (value "GND") (footprint "")
+      (reference "#PWR01") (unit 1) (value "GND") (footprint "")
+    )
+    (path "/77fe47b2-b6d7-43bb-b6db-557debaa65e0"
+      (reference "#PWR02") (unit 1) (value "GND") (footprint "")
     )
     (path "/2dacde19-80db-4d38-9824-020311701aea"
-      (reference "#PWR?") (unit 1) (value "+5V") (footprint "")
+      (reference "#PWR03") (unit 1) (value "+5V") (footprint "")
     )
     (path "/5b04c2f1-f19d-4913-83ad-e159cec6f0f0"
-      (reference "#PWR?") (unit 1) (value "GND") (footprint "")
-    )
-    (path "/77fe47b2-b6d7-43bb-b6db-557debaa65e0"
-      (reference "#PWR?") (unit 1) (value "GND") (footprint "")
+      (reference "#PWR04") (unit 1) (value "GND") (footprint "")
     )
     (path "/7f20785b-a433-4b0d-8b63-37f4ac8802dd"
-      (reference "#PWR?") (unit 1) (value "GND") (footprint "")
+      (reference "#PWR05") (unit 1) (value "GND") (footprint "")
     )
     (path "/a192deea-18e5-409c-b3a9-8495c50494c1"
-      (reference "#PWR?") (unit 1) (value "+5V") (footprint "")
+      (reference "#PWR06") (unit 1) (value "+5V") (footprint "")
     )
     (path "/aa26f61a-83bb-466a-81bd-6cb1d473e1ff"
-      (reference "#PWR?") (unit 1) (value "GND") (footprint "")
+      (reference "#PWR07") (unit 1) (value "GND") (footprint "")
     )
     (path "/53e48d44-ba1e-42f1-9a32-a5a15c5c3055"
-      (reference "J?") (unit 1) (value "Screw_Terminal_01x04") (footprint "")
+      (reference "J1") (unit 1) (value "Screw_Terminal_01x04") (footprint "TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-4-5.08_1x04_P5.08mm_Horizontal")
     )
     (path "/a57b419a-80ba-431f-b8ba-44d5e367cdc2"
-      (reference "Q?") (unit 1) (value "2N3904") (footprint "Package_TO_SOT_THT:TO-92_Inline")
+      (reference "Q1") (unit 1) (value "2N3904") (footprint "Package_TO_SOT_THT:TO-92_Inline")
     )
-    (path "/06119d4b-81c4-4357-990e-fc53c23277eb"
-      (reference "R?") (unit 1) (value "10k") (footprint "")
+    (path "/c3474043-1248-4be5-806a-76aa8f6b8645"
+      (reference "R1") (unit 1) (value "33k") (footprint "Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder")
     )
-    (path "/21bf6af4-154a-4add-9dc5-268e5a97c9ef"
-      (reference "R?") (unit 1) (value "33k") (footprint "")
+    (path "/06119d4b-81c4-4357-990e-fc53c23277eb"
+      (reference "R2") (unit 1) (value "10k") (footprint "Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder")
     )
     (path "/97e7a03f-b013-4c93-904e-db2735cd0292"
-      (reference "R?") (unit 1) (value "1k") (footprint "")
+      (reference "R3") (unit 1) (value "1k") (footprint "Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder")
     )
-    (path "/c3474043-1248-4be5-806a-76aa8f6b8645"
-      (reference "R?") (unit 1) (value "33k") (footprint "")
+    (path "/21bf6af4-154a-4add-9dc5-268e5a97c9ef"
+      (reference "R4") (unit 1) (value "33k") (footprint "Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder")
     )
     (path "/c4bc9bfd-fd92-4944-a701-a0978a2ca965"
-      (reference "R?") (unit 1) (value "10k") (footprint "")
+      (reference "R5") (unit 1) (value "10k") (footprint "Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder")
     )
     (path "/46579641-62bd-490c-85c1-282dfb1e88b7"
-      (reference "U?") (unit 1) (value "WeMos_D1_mini") (footprint "Module:WEMOS_D1_mini_light")
+      (reference "U1") (unit 1) (value "WeMos_D1_mini") (footprint "Module:WEMOS_D1_mini_light")
     )
   )
 )